Update readme.md

readme.md

@@ -1,5 +1,9 @@
 # Substrate funding service
 
+A TFChain Wallet account requires a minimum balance to exist and function. New TFChain users will not automatically have any tokens (also not on stellar).
+ Therefore an activation service for new TFChain wallets is created. It activates new TFChain wallet addresses by depositing a minimal amount of TFT (currently 1 TFT).
+
+
 ## Installing and running
 
 create `.env` file with following content:
@@ -53,4 +57,4 @@ Build the docker image and configure following environment variables:
 ```
 MNEMONIC=mnemonic words for account that activates
 URL=substrate websocket url
-```
+```